1. It can be used in enamel preservatives and electronics, instrumentation, metallurgy and other industries. 2. Used in metal heat treatment, glass manufacturing, and used as flux and light blocking agent in glass and enamel. 3. It can be used as window Chemicalbook material for hydrogen fluoride, deuterium fluoride, Co and other lasers. 4. It can be used as window material or other optical components of devices such as carbon dioxide and the whole machine. 5. Barium fluoride crystals with scintillation slow component suppression filters can be used in nuclear medicine, high-energy physics, physical exploration and gamma-ray astronomy.